Bug: ISPConfig 3.0.1 - Monitor

I miss some kind of BugTracker for ISPConfig ... so I will post it here

The Monitor in ISPConfig should not check for free space on the following devices:
- iso9660 CD/DVD mounts
- udf CD/DVD mounts
- read only mounts

Reason:
If you add a read only mount like a CD or DVD the monitor will report a false error due to 0 disk space left on that driveFilesystem Type Size Used Available Use% Mounted on
...
/dev/sr0 udf 1,4G 1,4G 0 100% /media/backupDVD

At least for iso9660 and cramfs there is already a check in monitor_core_module.inc.php in function monitorDiskUsage() and unfortunately 'df -hT' does not report if the file system is mounted read-only.